And herbert



(No Model). I

H. R. KEMP & H- E. MA-RSDEN. JOINT FOR'UMBRELLARIBS AND STRETGHERS- No. 408,722. Patented Aug. 13, 1889;

W1 2' WESSES r 2f, Wfikdllornq.

PETERS. Ptwtn-Li'hognpher. Wnlhingtcn. mv f.

UNITED STATES PATENT OFFICE.

HOWARD R. KEMP, OF GLOUCESTER CITY, NEW JERSEY, AND HERBERT E. MARSDEN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNORS OF ONE- THIRD TO CHARLES T. SOHOEN, OF PHILADELPHIA, PENNSYLVANIA.

JOINT FOR UMBRELLA RIBS AND STRETCHERS.

SPECIFICATION forming part of Letters Patent N6. 408,722, dated August 13, 1889. Application filed February 19, 1889. Serial No. 300,418. (No model.)

To all whom, it may concern:

Be it known that we, HOWARD R. KEMP and HERBERT E. IVIARSDEN, citizens of the United States, residing at Gloucester City, in the county of Camden and State of New J ersey, and at Philadelphia, in the county of Philadelphia and State of Pennsylvania, respectively, have invented a certain new and useful Improvement in Joints for Umbrella Ribs and Stretchers, of which the following,

and 2 show in perspective a common form of joint used in paragon frames, Fig. 1 showing the usual cloth covering loosened and slipped back from the joint, and Fig. 2 showing such covering in position; Fig. 3 is a cross-section of the rib having the old joint applied. Fig. 4 is a perspective view of the blank for forming our joint. Fig. 5 is a perspective view of the formed joint. Fig. 6 is a sectional elevation of the rib and stretcher connected through the intervention of our joint, and Fig. 7 a perspective view of the same.

Probably the most common way of connecting the ribs A and stretchers B of paragon frames is by means of the clip or joint a. (Shown in Figs. 1 and 2.) This joint is applied outside of' the rib and has ears a at each end and on each side, which are turned over into the trough of the rib, as shown in Fig. 3, and pinched against the walls of the rib. With this construction the stability of the joint depends upon its frictional contact with the rib, and this is so uncertain that probably twenty per cent. of all such joints are thrown out because they slip when in place on an umbrella-frame. Another objection to this form of joint is that it makes a protuberance upon the frame which serves to out out the cover of the umbrella, and to obviate this it is customary to jacket such joints by means of a piece of cloth a sewed or lapped around the joint, as indicated in Fig. 2. This illustration of the prior state of the art, or this much thereof, will serve to indicate the direction of our invention.

In the production of our invention we take a blank I), of substantially the shape shown in Fig. 4, and bend it into the form shown in Fig. 5, forming thus a trough b and cars 19 the said ears being pierced transversely, as at 113, to receive the pin or rivet 0, used to connect the stretclier B with the rib A through the intervention of the joint. The joint, formed substantially as shown in Fig. 5, is laid in the trough of the paragon rib at the point where it is desired to connect the stretcher and the rib. The trough-like body of the joint is contained wholly within the said rib without outer projection therefrom and without forming any protuberance thereon; but of course the ears b stand out of the rib. The joint is secured within the rib, preferably, by indenting the sides of the rib and joint, substantially as shown in Fig. 7 at Z) If.

It will be observed that by inclosing the joint within the trough of the rib the objections found to exist in the Old style of joint with relation to the protruding is wholly overcome. Further, by laying the joint within the trough of the rib and indenting the sides of the rib to hold the said joint in place, it

will be observed that it is impossible for the joint to move longitudinally or to slip, and thus that difficulty in the old style of joint is obviated. Moreover, by the construction of our invention the manufacture of joints is greatly facilitated and rendered more economical.

In describing our invention as applied to umbrella-frames we do not, of course, limit the invention to umbrellas, but include sunshades, parasols, and the like.

It is not broadly new to make a joint which is wholly within the rib, and hence the foregoing description and the accompanying illustration of the particular old form which it is the object of our invention to supersede must be understood accordingly,

\Vhat We claim is 1. A joint for connecting the ribs and stretchers of umbrellas and the like, constructed of sheet metal bent to conform to the shape and size of the inside of the rib and arranged Within the trough of the rib, and having outWardly-projecting ears for connection of the stretcher, substantially as described.

2. A joint for connecting the ribs and stretchers of umbrellas and the like, constructed with a trough-like body 1), arranged wholly Within the trough of the rib and secured by coincident indentations in its sides and the sides of the rib, and having the upwardly and outwardly proj ccting cars b substantially as described.

II()\VARD R. KEMP. HERBERT E. MARSDEN.

\Vitnesses:

WILLIAM F. LARER, W. H. ScHoEN, JR. 

